Data compression system for wavelet transform

摘要

The system includes a band buffer (501), coupled to an input of a wavelet transform unit (502). The wavelet transform unit performs a reversible wavelet transform on pixels stored in the buffer and to generate coefficients at its output. A coder, comprising a context model and a parallel entropy coder encoder, is coupled to the wavelet transform unit to code bitplanes of wavelet transformed pixels received from the transform unit and also the buffer.